<?php

class geoPlugin {

//the geoPlugin server
var $host = 'http://www.geoplugin.net/php.gp?ip={IP}&base_currency={CURRENCY}';

//the default base currency
var $currency = 'USD';

//initiate the geoPlugin vars
var $ip = null;
var $city = null;
var $region = null;
var $areaCode = null;
var $dmaCode = null;
var $countryCode = null;
var $countryName = null;
var $continentCode = null;
var $latitute = null;
var $longitude = null;
var $currencyCode = null;
var $currencySymbol = null;
var $currencyConverter = null;

function geoPlugin() {

}

function locate($ip = null) {

global $_SERVER;

if ( is_null( $ip ) ) {
$ip = $_SERVER['REMOTE_ADDR'];
}

$host = str_replace( '{IP}', $ip, $this->host );
$host = str_replace( '{CURRENCY}', $this->currency, $host );

$data = array();

$response = $this->fetch($host);

$data = unserialize($response);

//set the geoPlugin vars
$this->ip = $ip;
$this->city = $data['geoplugin_city'];
$this->region = $data['geoplugin_region'];
$this->areaCode = $data['geoplugin_areaCode'];
$this->dmaCode = $data['geoplugin_dmaCode'];
$this->countryCode = $data['geoplugin_countryCode'];
$this->countryName = $data['geoplugin_countryName'];
$this->continentCode = $data['geoplugin_continentCode'];
$this->latitude = $data['geoplugin_latitude'];
$this->longitude = $data['geoplugin_longitude'];
$this->currencyCode = $data['geoplugin_currencyCode'];
$this->currencySymbol = $data['geoplugin_currencySymbol'];
$this->currencyConverter = $data['geoplugin_currencyConverter'];

}

function fetch($host) {

if ( function_exists('curl_init') ) {

//use cURL to fetch data
$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, $host);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
curl_setopt($ch, CURLOPT_USERAGENT, 'geoPlugin PHP Class v1.0');
$response = curl_exec($ch);
curl_close ($ch);

} else if ( ini_get('allow_url_fopen') ) {

//fall back to fopen()
$response = file_get_contents($host, 'r');

} else {

trigger_error ('geoPlugin class Error: Cannot retrieve data. Either compile PHP with cURL support or enable allow_url_fopen in php.ini ', E_USER_ERROR);
return;

}

return $response;
}

function convert($amount, $float=2, $symbol=true) {

//easily convert amounts to geolocated currency.
if ( !is_numeric($this->currencyConverter) || $this->currencyConverter == 0 ) {
trigger_error('geoPlugin class Notice: currencyConverter has no value.', E_USER_NOTICE);
return $amount;
}
if ( !is_numeric($amount) ) {
trigger_error ('geoPlugin class Warning: The amount passed to geoPlugin::convert is not numeric.', E_USER_WARNING);
return $amount;
}
if ( $symbol === true ) {
return $this->currencySymbol . round( ($amount * $this->currencyConverter), $float );
} else {
return round( ($amount * $this->currencyConverter), $float );
}
}

function nearby($radius=10, $limit=null) {

if ( !is_numeric($this->latitude) || !is_numeric($this->longitude) ) {
trigger_error ('geoPlugin class Warning: Incorrect latitude or longitude values.', E_USER_NOTICE);
return array( array() );
}

$host = "http://www.geoplugin.net/extras/nearby.gp?lat=" . $this->latitude . "&long=" . $this->longitude . "&radius={$radius}";

if ( is_numeric($limit) )
$host .= "&limit={$limit}";

return unserialize( $this->fetch($host) );

}


};
?>